Jay Bilas breaks down the pivotal individual and unit matchups for Thursday's Sweet 16 games. If Arizona is to beat Ohio State, it'll need to find a way to limit Deshaun Thomas' production.
Fran Fraschilla ranks the top 25 impact players in college basketball through the first three months of the season.
Seth Greenberg ranks college basketball's top 10 "matchup nightmares" -- the toughest players in the nation to defend against. He also provides a game plan for defending each one.